118918867 has 2 divisors, whose sum is σ = 118918868. Its totient is φ = 118918866.

The previous prime is 118918861. The next prime is 118918907. The reversal of 118918867 is 768819811.

It is a weak prime.

It is an emirp because it is prime and its reverse (768819811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118918867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118918867.

It is not a weakly prime, because it can be changed into another prime (118918861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59459433 + 59459434.

It is an arithmetic number, because the mean of its divisors is an integer number (59459434).

Almost surely, 2^118918867 is an apocalyptic number.

118918867 is a deficient number, since it is larger than the sum of its proper divisors (1).

118918867 is an equidigital number, since it uses as much as digits as its factorization.

118918867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 49.

The square root of 118918867 is about 10904.9927556143. The cubic root of 118918867 is about 491.7566643769.

The spelling of 118918867 in words is "one hundred eighteen million, nine hundred eighteen thousand, eight hundred sixty-seven".